Coverage Report

Created: 2020-09-19 12:23

/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/lib/Frontend/ASTConsumers.cpp
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//===--- ASTConsumers.cpp - ASTConsumer implementations -------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// AST Consumer Implementations.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Frontend/ASTConsumers.h"
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#include "clang/AST/AST.h"
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/PrettyPrinter.h"
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#include "clang/AST/RecordLayout.h"
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#include "clang/AST/RecursiveASTVisitor.h"
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#include "clang/Basic/Diagnostic.h"
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#include "clang/Basic/SourceManager.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Timer.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace clang;
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//===----------------------------------------------------------------------===//
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/// ASTPrinter - Pretty-printer and dumper of ASTs
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namespace {
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  class ASTPrinter : public ASTConsumer,
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                     public RecursiveASTVisitor<ASTPrinter> {
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    typedef RecursiveASTVisitor<ASTPrinter> base;
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  public:
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    enum Kind { DumpFull, Dump, Print, None };
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    ASTPrinter(std::unique_ptr<raw_ostream> Out, Kind K,
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               ASTDumpOutputFormat Format, StringRef FilterString,
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               bool DumpLookups = false, bool DumpDeclTypes = false)
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        : Out(Out ? *Out : llvm::outs()), OwnedOut(std::move(Out)),
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          OutputKind(K), OutputFormat(Format), FilterString(FilterString),
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          DumpLookups(DumpLookups), DumpDeclTypes(DumpDeclTypes) {}
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    void HandleTranslationUnit(ASTContext &Context) override {
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      TranslationUnitDecl *D = Context.getTranslationUnitDecl();
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      if (FilterString.empty())
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        return print(D);
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      TraverseDecl(D);
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    }
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    bool shouldWalkTypesOfTypeLocs() const { return false; }
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    bool TraverseDecl(Decl *D) {
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      if (D && 
filterMatches(D)3.77k
) {
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        bool ShowColors = Out.has_colors();
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        if (ShowColors)
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          Out.changeColor(raw_ostream::BLUE);
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        Out << (OutputKind != Print ? "Dumping " : 
"Printing "0
) << getName(D)
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            << ":\n";
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        if (ShowColors)
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          Out.resetColor();
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        print(D);
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        Out << "\n";
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        // Don't traverse child nodes to avoid output duplication.
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        return true;
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      }
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      return base::TraverseDecl(D);
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    }
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  private:
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    std::string getName(Decl *D) {
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      if (isa<NamedDecl>(D))
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        return cast<NamedDecl>(D)->getQualifiedNameAsString();
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      return "";
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    }
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    bool filterMatches(Decl *D) {
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      return getName(D).find(FilterString) != std::string::npos;
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    }
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    void print(Decl *D) {
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      if (DumpLookups) {
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        if (DeclContext *DC = dyn_cast<DeclContext>(D)) {
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          if (DC == DC->getPrimaryContext())
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            DC->dumpLookups(Out, OutputKind != None, OutputKind == DumpFull);
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          else
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            Out << "Lookup map is in primary DeclContext "
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                << DC->getPrimaryContext() << "\n";
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        } else
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          Out << "Not a DeclContext\n";
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      } else if (OutputKind == Print) {
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        PrintingPolicy Policy(D->getASTContext().getLangOpts());
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        D->print(Out, Policy, /*Indentation=*/0, /*PrintInstantiation=*/true);
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      } else if (OutputKind != None) {
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        D->dump(Out, OutputKind == DumpFull, OutputFormat);
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      }
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      if (DumpDeclTypes) {
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        Decl *InnerD = D;
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        if (auto *TD = dyn_cast<TemplateDecl>(D))
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          InnerD = TD->getTemplatedDecl();
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        // FIXME: Support OutputFormat in type dumping.
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        // FIXME: Support combining -ast-dump-decl-types with -ast-dump-lookups.
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        if (auto *VD = dyn_cast<ValueDecl>(InnerD))
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          VD->getType().dump(Out, VD->getASTContext());
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        if (auto *TD = dyn_cast<TypeDecl>(InnerD))
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          TD->getTypeForDecl()->dump(Out, TD->getASTContext());
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      }
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    }
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    raw_ostream &Out;
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    std::unique_ptr<raw_ostream> OwnedOut;
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    /// How to output individual declarations.
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    Kind OutputKind;
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    /// What format should the output take?
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    ASTDumpOutputFormat OutputFormat;
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    /// Which declarations or DeclContexts to display.
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    std::string FilterString;
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    /// Whether the primary output is lookup results or declarations. Individual
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    /// results will be output with a format determined by OutputKind. This is
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    /// incompatible with OutputKind == Print.
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    bool DumpLookups;
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    /// Whether to dump the type for each declaration dumped.
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    bool DumpDeclTypes;
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  };
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  class ASTDeclNodeLister : public ASTConsumer,
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                     public RecursiveASTVisitor<ASTDeclNodeLister> {
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  public:
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    ASTDeclNodeLister(raw_ostream *Out = nullptr)
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        : Out(Out ? *Out : llvm::outs()) {}
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    void HandleTranslationUnit(ASTContext &Context) override {
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      TraverseDecl(Context.getTranslationUnitDecl());
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    }
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    bool shouldWalkTypesOfTypeLocs() const { return false; }
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    bool VisitNamedDecl(NamedDecl *D) {
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      D->printQualifiedName(Out);
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      Out << '\n';
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      return true;
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    }
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  private:
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    raw_ostream &Out;
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  };
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} // end anonymous namespace
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std::unique_ptr<ASTConsumer>
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clang::CreateASTPrinter(std::unique_ptr<raw_ostream> Out,
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                        StringRef FilterString) {
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  return std::make_unique<ASTPrinter>(std::move(Out), ASTPrinter::Print,
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                                       ADOF_Default, FilterString);
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}
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std::unique_ptr<ASTConsumer>
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clang::CreateASTDumper(std::unique_ptr<raw_ostream> Out, StringRef FilterString,
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                       bool DumpDecls, bool Deserialize, bool DumpLookups,
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                       bool DumpDeclTypes, ASTDumpOutputFormat Format) {
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  assert((DumpDecls || Deserialize || DumpLookups) && "nothing to dump");
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  return std::make_unique<ASTPrinter>(
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      std::move(Out),
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      Deserialize ? ASTPrinter::DumpFull
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                  : DumpDecls ? 
ASTPrinter::Dump342
:
ASTPrinter::None5
,
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      Format, FilterString, DumpLookups, DumpDeclTypes);
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}
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std::unique_ptr<ASTConsumer> clang::CreateASTDeclNodeLister() {
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  return std::make_unique<ASTDeclNodeLister>(nullptr);
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}
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//===----------------------------------------------------------------------===//
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/// ASTViewer - AST Visualization
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namespace {
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  class ASTViewer : public ASTConsumer {
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    ASTContext *Context;
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  public:
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    void Initialize(ASTContext &Context) override {
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      this->Context = &Context;
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    }
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    bool HandleTopLevelDecl(DeclGroupRef D) override {
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      for (DeclGroupRef::iterator I = D.begin(), E = D.end(); I != E; ++I)
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        HandleTopLevelSingleDecl(*I);
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      return true;
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    }
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    void HandleTopLevelSingleDecl(Decl *D);
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  };
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}
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void ASTViewer::HandleTopLevelSingleDecl(Decl *D) {
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  if (isa<FunctionDecl>(D) || isa<ObjCMethodDecl>(D)) {
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    D->print(llvm::errs());
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    if (Stmt *Body = D->getBody()) {
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      llvm::errs() << '\n';
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      Body->viewAST();
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      llvm::errs() << '\n';
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    }
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  }
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}
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std::unique_ptr<ASTConsumer> clang::CreateASTViewer() {
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  return std::make_unique<ASTViewer>();
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}